Dear Dr. Roach: I am a 22-year-old male. I recently had a 103-degree fever with cold and cough symptoms, and my doctor ordered a complete blood count. After my results came back, he said it is normal, ...

In a recent article published in the Science Immunology Journal, researchers investigated a cohort of patients who developed myocarditis or pericarditis shortly after severe acute respiratory syndrome ...

Figure 1: Effector lymphocytes arrest in vivo on inflamed skin vessels independently of G i protein signaling. Figure 2: Effector human T lymphocytes arrest on TNF-activated HUVECs independently of ...

DEAR DR. ROACH: I am a female and almost 75 years old. My vital signs are always normal, and I am active, but slightly overweight. I get quarterly blood draws, and every reading is in the normal range ...

Intraepithelial lymphocytosis is an elevated white blood cell count in your gastrointestinal tract. It can be a sign of celiac disease, Crohn’s disease, or other gastrointestinal conditions. The ...

Monoclonal B-cell lymphocytosis (MBL) is a condition in which a person has an excessive amount of abnormal B cells, which are a type of white blood cell known as lymphocytes. The number of abnormal B ...

Low Levels of Circulating Invariant Natural Killer T Cells Predict Poor Clinical Outcome in Patients With Head and Neck Squamous Cell Carcinoma Tumor-infiltrating lymphocytes (TILs) are considered a ...

Dear Dr. Roach: I am a female and almost 75 years old. My vital signs are always normal, and I am active, but slightly overweight. I get quarterly blood draws, and every reading is in the normal range ...

What Is B-Cell Lymphoma? B-cell lymphoma is a cancer that forms in your white blood cells called lymphocytes. These cells are made by your lymphatic system, which plays an important role in immunity.

To confirm a diagnosis and determine the stage of the disease, your doctor will use a series of tests: Biopsy: This is the most definitive test. A surgeon will remove all or part of an affected lymph ...